Methylenecyclopropanes in [4 + 1] Cycloaddition with Enones
摘要:
A nickel-catalyzed [4 + 1] cycloaddition of enones with methylenecyclopropanes leading to dihydrofurans was developed. The reaction outcome is attributed to the transformation of methlenecyclopropane, which is incorporated Into a five-membered ring as a one-carbon fragment.